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Finding the Fourth Proportional to 329,647.20, 493,693.20 and 223,893.60

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Solution

The fourth proportional to 329,647.20, 493,693.20 and 223,893.60 is: 335,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,647.20 : 493,693.20 = 223,893.60 : x
  2. Step 2: Convert to fraction form
    329,647.20/493,693.20 = 223,893.60/x
  3. Step 3: Cross multiply
    329,647.20x = 493,693.20 × 223,893.60
  4. Step 4: Simplify right side
    329,647.20x = 110,534,747,843.52
  5. Step 5: Solve for x
    x = 110,534,747,843.52/329,647.20
  6. Step 6: Final answer
    x = 335,312.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.